Abstract:Persistence of acquirer returns is one of the most important considerations when corporations making acquisitions.Therefore, the paper aims to analyze the sustainability of acquisition performance and its affected factors. The first part focuses on analyzing persistence of frequent and occasional acquirers' returns. Regression analysis and mean value test are adopted in this section to verify whether the acquisition performance is persistent in the subsamples mentioned above. It proved that the persistence of frequent acquirers' return is more significant than occasional acquirers by comparing the experimental results of two subsamples. The other part of the paper aims to find out the main influence factors on persistence of frequent acquirer returns. Specifically, Firm characteristics and management structure impact the sustainability of acquisition performance to some extent. But the explanation degree is limited according to OLS regression result. In this case, fixed effect model is introduced into the paper. In addition, LR test proves the fixed effect model is superior to the mixed effect model. It turns out that besides firm characteristics and management structure, the persistence of acquirer returns is determined by some unobservable factors of the specific firm, such as acquisition skill, capability of valuating and integrating the target asset. This conclusion explains the fact that the persistence of frequent acquirers' return is more significant than the occasional acquirers mentioned above.